PNG icon sprite (5-icon strip)
A 320×64 PNG icon sprite (five 64×64 cells): the raster twin of the SVG sprite, for testing background-position sprite techniques and sprite slicers.
Specifications
- Format
- PNG sprite strip
- Grid
- 5 x 1
- Cell
- 64x64
- Icons
- 5
Testing contract
Expected to pass- Scenario
- Exercise PNG icon sprite (5-icon strip) in its sprites workflow. A 320×64 PNG icon sprite (five 64×64 cells): the raster twin of the SVG sprite, for testing background-position sprite techniques and sprite slicers.
- Expected result
- Decoded geometry is 320×64 pixels in RGBA mode; frame count is 1. Declared feature checks: grid=5 x 1; cell=64x64; icons=5. The declared comparison counterpart is web-sprite-svg; preserve the stated difference instead of expecting the container bytes to match.
What is a .png file?
PNG (Portable Network Graphics) is a raster image format using lossless DEFLATE compression. It supports full 8- or 16-bit-per-channel truecolor, palette, and greyscale modes with an optional alpha channel, but no animation. It is the standard choice for screenshots, logos, and graphics with sharp edges or transparency.
How to use this file
Use an example PNG to test image decoders, alpha-compositing, thumbnail generators, and format converters, or to verify that a pipeline preserves transparency and color depth on round-trip.
How to use this file for testing
“PNG icon sprite (5-icon strip)” is a deterministic Testaroo fixture for Web assets, Conversion testing. Favicons, web app manifests, service workers, robots and sitemap files, Open Graph images, and .well-known resources, for testing web tooling, crawlers, PWA installers, and asset pipelines.
Documented properties for this file: PNG sprite strip. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such, expect parsers to fail loudly rather than silently accept them.
Web-platform fixtures are standards-compliant samples against fictional example.com data. Test crawlers, PWA installers and manifest validators, favicon/icon pipelines, service-worker registration, or .well-known parsers against the documented structure.
Code examples
<img src="icons-sprite.png" alt="Example image" width="640" loading="lazy">Generated by generation/web_assets.py. Free for any use, no attribution required, license.
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